Two people were arrested in connection with a violent protest that broke out in front of the California State Capitol last year, the Sacramento County District Attorney’s Office said Tuesday.

William Planer and Porfirio Paz were arrested on charges of assault with a deadly weapon and participating in a riot, the DA’s office said. Planer was taken into custody in Colorado and will be extradited to California; Paz was taken into custody in Southern California and will be arraigned on July 24.

More than 280 counter-protesters confronted about 24 white supremacists in front of the state Capitol, the CHP said. The counter-protesters threw pieces of concrete and rock, as well as smashed the glass at the Capitol, officers said.

However, the DA’s office said Tuesday many of the warrants did not meet the agencies guidelines. Those warrants included 85 counts of unlawful assembly, 55 counts of conspiracy to unlawful assembly and 32 counts of possessing illegal signs and banners.

“In several other cases, there was clear evidence of felonious conduct but the identity of the perpetrators could not be established,” the DA’s Office said in a statement. “Unfortunately, included in this category were all of the stabbings and the attack on a local television reporter.”

KCRA reporter Mike Luery was covering the event when he and a KCRA photojournalist were attacked by protesters. They both suffered minor injuries.

After reviewing the evidence, the DA’s Office filed arrest warrants for people who, “represented the most egregious offenses that can be proven beyond a reasonable doubt.”

The DA’s Office did not release the names of all the people for whom arrest warrants were issued, but could only confirm the arrests of Planer and Paz.